[Projects] Re: [RANCH] 71 Add a Time Stamp Counter measure

https://svn.lrde.epita.fr/svn/ranch/trunk Index: ChangeLog from Nicolas Desprès &lt;nicolas.despres(a)gmail.com&gt; Add a Time Stamp Counter measure. * lib/cxx/demo/basic.cc: Rename to ... * lib/cxx/demo/utime.cc: ... that and remove dead code. * lib/cxx/demo/Makefile.am: Add the tsc demo. * lib/cxx/demo/tsc.cc: New. A demo for the TSC measure. * lib/cxx/src/ranch-cxx/output/Makefile.am: Add the tsc files. * lib/cxx/src/ranch-cxx/output/all.hh: Include the TSC header. * lib/cxx/src/ranch-cxx/output/tsc.hxx, * lib/cxx/src/ranch-cxx/output/tsc.hh, * lib/cxx/src/ranch-cxx/output/tsc.cc: New. Implements the TSC measure. * lib/cxx/src/ranch-cxx/bencher.hh: Typo. demo/Makefile.am | 16 +++++++++++----- demo/tsc.cc | 30 ++++++++++++++++++++++++++++++ demo/utime.cc | 6 ------ src/ranch-cxx/bencher.hh | 2 +- src/ranch-cxx/output/Makefile.am | 9 +++++++-- src/ranch-cxx/output/all.hh | 1 + src/ranch-cxx/output/tsc.cc | 28 ++++++++++++++++++++++++++++ src/ranch-cxx/output/tsc.hh | 32 ++++++++++++++++++++++++++++++++ src/ranch-cxx/output/tsc.hxx | 20 ++++++++++++++++++++ 9 files changed, 130 insertions(+), 14 deletions(-) Index: lib/cxx/demo/utime.cc --- lib/cxx/demo/utime.cc (revision 70) +++ lib/cxx/demo/utime.cc (working copy) @@ -12,12 +12,6 @@ return i; } -void basic(const double foo, const double bar, double& toto, double& tata) -{ - toto = foo + bar; - tata = foo * bar; -} - int main() { Ranch::Input::Input foo("foo", "unit_foo"); Index: lib/cxx/demo/Makefile.am --- lib/cxx/demo/Makefile.am (revision 70) +++ lib/cxx/demo/Makefile.am (working copy) @@ -1,7 +1,13 @@ include $(top_srcdir)/src/ranch.mk -check_PROGRAMS = basic -basic_SOURCES = basic.cc -basic_CXXFLAGS = -W -Wall -pedantic -O3 -basic_CPPFLAGS = -I$(top_srcdir)/src -I$(top_builddir)/src -basic_LDADD = $(top_builddir)/src/ranch-cxx/libranch-cxx.la +check_PROGRAMS = utime tsc + +utime_SOURCES = utime.cc +utime_CXXFLAGS = -W -Wall -pedantic -O3 +utime_CPPFLAGS = -I$(top_srcdir)/src -I$(top_builddir)/src +utime_LDADD = $(top_builddir)/src/ranch-cxx/libranch-cxx.la + +tsc_SOURCES = tsc.cc +tsc_CXXFLAGS = -W -Wall -pedantic -O3 +tsc_CPPFLAGS = -I$(top_srcdir)/src -I$(top_builddir)/src +tsc_LDADD = $(top_builddir)/src/ranch-cxx/libranch-cxx.la Index: lib/cxx/demo/tsc.cc --- lib/cxx/demo/tsc.cc (revision 0) +++ lib/cxx/demo/tsc.cc (revision 0) @@ -0,0 +1,30 @@ + +#include <ranch-cxx/ranch.hh> + +int do_something(int i) +{ + for (int j = 0; j < i; ++j) + ; + for (int j = 0; j < i; ++j) + ; + for (int j = 0; j < i; ++j) + ; + return i; +} + +int main() +{ + Ranch::Input::Input dummy("dummy"); + Ranch::Inputs inputs; + inputs.add(dummy); + + Ranch::Output::TSC tsc; + Ranch::Outputs outputs; + outputs.add(tsc); + + Ranch::Bencher b("TSC", inputs, outputs, "a comment"); + b.start(0.0f); + do_something(1000000000); + b.stop(tsc()); + return 0; +} Index: lib/cxx/src/ranch-cxx/output/tsc.hxx --- lib/cxx/src/ranch-cxx/output/tsc.hxx (revision 0) +++ lib/cxx/src/ranch-cxx/output/tsc.hxx (revision 0) @@ -0,0 +1,20 @@ + +#ifndef RANCH_OUTPUT_TSC_HXX +# define RANCH_OUTPUT_TSC_HXX + +# include <ranch-cxx/output/u-time.hh> + +namespace Ranch +{ + namespace Output + { + + inline TSC::TSC() : + Output("TSC", "proc tick") + { + } + + } // namespace Output +} // namespace Ranch + +#endif // !RANCH_OUTPUT_TSC_HXX Index: lib/cxx/src/ranch-cxx/output/all.hh --- lib/cxx/src/ranch-cxx/output/all.hh (revision 70) +++ lib/cxx/src/ranch-cxx/output/all.hh (working copy) @@ -3,6 +3,7 @@ # include <ranch-cxx/output/output.hh> # include <ranch-cxx/output/u-time.hh> +# include <ranch-cxx/output/tsc.hh> #endif // !RANCH_OUTPUT_ALL_HH Index: lib/cxx/src/ranch-cxx/output/tsc.hh --- lib/cxx/src/ranch-cxx/output/tsc.hh (revision 0) +++ lib/cxx/src/ranch-cxx/output/tsc.hh (revision 0) @@ -0,0 +1,32 @@ + + +#ifndef RANCH_OUTPUT_TSC_HH +# define RANCH_OUTPUT_TSC_HH + +# include <ranch-cxx/output/output.hh> +# include <stdint.h> + +namespace Ranch +{ + namespace Output + { + + class TSC : public Output + { + public: + TSC(); + + protected: + virtual void start_(); + virtual void stop_(); + + uint64_t start_tsc_; + }; // class Tsc + + } // namespace Output +} // namespace Ranch + +# include <ranch-cxx/output/tsc.hxx> + +#endif // !RANCH_OUTPUT_TSC_HH + Index: lib/cxx/src/ranch-cxx/output/Makefile.am --- lib/cxx/src/ranch-cxx/output/Makefile.am (revision 70) +++ lib/cxx/src/ranch-cxx/output/Makefile.am (working copy) @@ -8,11 +8,16 @@ output.cc \ u-time.hh \ u-time.hxx \ - u-time.cc + u-time.cc \ + tsc.hh \ + tsc.hxx \ + tsc.cc pkgincludedir = $(includedir)/ranch-cxx/output pkginclude_HEADERS = \ all.hh \ output.hh \ output.hxx \ u-time.hh \ - u-time.hxx + u-time.hxx \ + tsc.hh \ + tsc.hxx Index: lib/cxx/src/ranch-cxx/output/tsc.cc --- lib/cxx/src/ranch-cxx/output/tsc.cc (revision 0) +++ lib/cxx/src/ranch-cxx/output/tsc.cc (revision 0) @@ -0,0 +1,28 @@ +#include <ranch-cxx/output/tsc.hh> + +namespace Ranch +{ + namespace Output + { + + extern "C" __inline__ uint64_t read_tsc(void) + { + uint64_t x; + __asm__ volatile (".byte 0x0f, 0x31" : "=A" (x)); + return x; + } + + void TSC::start_() + { + start_tsc_ = read_tsc(); + } + + void TSC::stop_() + { + value_ = (double)(read_tsc() - start_tsc_); + } + + } // namespace Output +} // namespace Ranch + + Index: lib/cxx/src/ranch-cxx/bencher.hh --- lib/cxx/src/ranch-cxx/bencher.hh (revision 70) +++ lib/cxx/src/ranch-cxx/bencher.hh (working copy) @@ -66,7 +66,7 @@ std::string comment_; // Necessary since we may use add_input/add_output. bool first_start_call_; - // Necessary to dump the score once every excepted score are registered. + // Necessary to dump the scores once every excepted scores are registered. unsigned score_set_num_; // Necessary to manage add_score(double). Outputs::iterator cur_output_;